Lock.



H. G. VOIGHL LOCK.'

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LOCK.

APPucATmN FILED um?. 191e.

Patente Ama 30,1918.

a SHEETS-SHEET 2.

H. G. VOIGHT.

LOCK.

APPLICATION FILED-DE01. 1916.

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HENRY e. voerrT, or New BnrTAIN, CONNECTICUT, AssreNon To sAnGENT a Colu- PANY, or Niiw HAVEN, CONNECTICUT, a CORPORATION or CONNECTICUT.

LOCK.

racines.

Speccaton of Letters Patent.

Patented Apr. 3U, l19918.

Applicaticn filed December 7, 1916. Serial No. 135,61

To all whom 'it may concern: Y

Be it known that I, HENRY G. Voren'r, a citizen of the United States, `residing in New Britain, county of Hartford, and State of Connecticut, have invented certain new and useful Improvements in Locks, of which the following is a full, clear, and exactV de scription.

This invention relates to locks, and more particularly to a mortise lock construction in which a deadbolt is employed, which can be protracted from either side of the door and wherein a special indicator bolt is used for actuating suitable indicator mechanism on the door jamb. When the main bolt is projected from one side of the roonn for example, the outside, the indicator bolt is not actuated; but when said main bolt is projected from the opposite side, for eX- ample, the inside, the indicator bolt likewise is thrown,.thereby operating the indicating mechanism and giving an indication that the room is occupied. Certain features of my improvements will, however, be found of advantage in locks of other kinds.

One of the primary objects-of the invention is to provide eilicient and reliable means for projecting one bolt, with, or independently of another bolt. f 1

rllhe invention also has in view the general improvement of devices of the class to which the j invention relates.

To these andvother ends, the invention consists in the novel features and combina tion of parts to be hereinafter described and claimed.

In the accompanying drawings,

Figure 1 is an elevation of a lock embodying my improvements, showing the main bolt and the indicator bolt retracted,

Fig. 2 is a view of the upper part of the lock, showing the main bolt and the indicaton bolt protracted by the thumb turn hub;

Fig. 2A is a fragmentary outside view of' the case, showing the manner of guiding the indicator bolt; Y

Fig. 2* is a fragmentary inside view of the case, showing the stump or fence for the indicator bolt;

Fig. 3 is a fragmentary view, showing the locking bolt protracted independently of the indicator bolt by the key mechanism;

Fig. 4: is a reverse view of certain parts shown in Fig. 1;

Fig. 5 is a reverse view of certain parts shown in Fig. 2;

Fig. 6 shows the main and indicator bolt mechanism with the emergency or auxiliary tumbler of the main bolt omitted, both bolts being in the retracted position;

Fig. 7 is a similar view, showing how iltohf indicator bolt is protracted by the main ot;

Fig. 8 is a similar view, showing how the main bolt is projected independently;

Fig. 9 isa section on line 9-9 of Fig. `6;

Iig. 10 is a detail of the indicator bolt; an

Fig. 11 is a detail of the tumbler of the indica-tor bolt. A

Referring to the drawings, 10 is the usual lock case of the mortise type having the latch bolt 11 in the lower part thereof adapted to be retracted by the ordinary knob mechanism, which it is not necessary to describe. In the upper part of the lock case is a main locking bolt 12, adapted to be operated from the outside of the room by a pin tumbler cylinder lock 13 having a cam or rollback lll, and said main bolt may be operated from the inside of the room by a thumb turn or the like (not shown) adapted to actuate a thumb turn hub 15. The

shank 16" of the bolt 12 is provided with a slot 17 by which it engages a post or fence 18 cast on the back of the case. The hub 15 is mounted between the cap and back wall of the case in the usual manner and eX- tends through a clearance opening 19 in the bolt shank. The bolt shank. carries at its forward part a post 20, on which is mounted a primary tumbler 21 (Fig. 6) having a lug 22 adapted to engage the fence 1S so as to lock the bolt in the retracted position (Fig. 6) 4or in the protracted posi* tion (Fig. 7 At its rear end, the tumbler 21 has a loop 23 extending around the thumb turn hub, and at-the upper part of the loop is an operating,projection 24 adapted to be engaged by the cam 111 of the cylinder, said projection 24 being located between the usual talons 25 at the upper rear part of the bolt shank. A spring 26 acts on theV tumbler in the usual manner, said spring being held in position against a lug 27 on the lower part of the bolt shank. A secn ondary, emergency, or auxiliary tumbler 28 (Fig. 1) is also used in connection with the main locking bolt, said tumbler 28 being Voccupying a position between the bolt-talons 25 under the influence of the tumbler spring 31, which tumbler spring, like the spring 26, reacts against the lug 27.

In the particular form shown, the secondary or emergency tumbler 28 has a special y of the primary tumbler.

movable abutment or lug 32 to coperate with the fence 13' When the bolt is protracted by the thumb turn hub, as hereinafter described, the movable abutment 32 klocksthe bolt inthe advanced position, as

shown in Fig. 2, whereas when the bolt is protracted by the change key, the movable abutmentV does not lock the bolt in the advanced position, although'in both cases the Ibolt is locked inthe vadvanced position by the lug 22 of the primary tumbler. This particular feature is described in my application Serial No. 95,376 in connection with a certain master key system, and I lay no claim to it in the present case. Y

The thumb turn -hub 15 has two wings 15a straddling a pin or projection 33 on the secondary tumbler. When the thumb turn hub is actuated, it depresses'the rear end of the secondary tumbler, and the secondary tumbler in turn depresses and actuates the primary tumbler by virtue of a smallproj ection on the back of the secondary tumbler in line with theprojection 33 engaging a small notch 34 at the lower part of the loop This method of operating one tumbler from the other is quite customary and need not be described in further detail. It-will be understood, however, thatlwhen the bolt is to be operated from the inside of the room by the thumb turn hub, the secondary tumbler is depressed, therebydepressing the primary tumbler and thus positivelyreleasing both tumblers from the fence 18 Vby giving said tumblers a swinging movei ment. When, however, the bolt is to be'operated from the outside of the room Vby the lkey mechanism, the rollback 14 of the cylinlderlock when actuated by the change key .will only engage the primary` tumbler 21 v without engaging the secondary tumbler,

i position shown in Fig. 3.V When the bolt isl and the primary tumbler will be depressed or swung pivotally independently of the secondary tumbler. In protracting the bolt -by the change key, the secondary tumbler is not depressed but remains in the normal position owing to the fact that the movable abutment 32 heretofore mentioned is enabled by itsspring 32a to yield and clear the fence 18 until, in the fully protracted position of the bolt, the movable abutment occupies the retracted by the change key, the secondary tumbler is not depressed because the primary tumbler is actuated independently, and the secondary tumbler may be pulled back, without resistance, to the initial position.

Mounted beneath the main locking bolt 12 is a special auxiliary bolt 35 which may be used as an indicator bolt for example. In the particular form shown, this bolt is quite small as compared to the main locking bolt, and is intended to operate a suitable indicator associated with the lock strike. This indicator bolt is automatically projected out of the face plate of the lock and into the strike when the main bolt is protracted from the inside, but remains in the retracted position when the main locking bolt is projected by the change key from the outside. Thus, in one case, the indicator is actuated, and in the other case the indicator is not actuted, so that a reliable indication may be given as to whether the lock has been locked from the outside or from the inside.

It has been explained above that when the main locking bolt is projected by the thumb turn, the secondary tumbler is depressed, and that when said bolt is projected by the change key, said tumbler is not depressed. This fact is takenadvantage of in the present construction to obtain the required operation of the indicator bolt, the construction being such that the indicator bolt is projected by the main bolt when the secondary tumbler is depressed, but not when said secondary tumbler remains in its normal position.

In the particular form shown, the indicator bolt 35 has a short shank 36, at the rear .end of which is a post 37 extending through a rectangular opening 38 in the wa of the lock case. The post 37 engaging the opening 38 constitutes a means for guiding the bolt in its forward and rearward movement. At the forward end of the bolt shank, the same carries by means of a pin 3S1|- a small pivoted tumbler 39 normally pressed in an upward direction by a spring 40 secured to the lower edge of the bolt shank. At its lower edge, the tumbler 39 has an inwardly projecting lug 41 to coperate with a fence 42 on the back of the lock case. This fence 42 is constituted by a iin located alongside of the lower edge of the guide opening 38, as shown in Fig. 2*. When the indicator bolt is in the retracted position, the lug 41 is behind the iin or fence 42, whereas when the bolt is in the projected position said lug is in front of the fence. At its upper rear part, the tumbler 39 is provided with a notch 43 adapted to be engaged by an outwardly and laterally projecting pin 44 on a small arm 45, pivoted at 46, to the lower part of the bolt shank at the rear part of such shank beneath the tumbler 21 and extending in a forward direction., The pin 44 for engaging the notch 43 of the tumbler 39 is located at the forward end of the arm 45, and the pivotal connection 46 is at the rear end of said arm. f The intermediate part of the arm is providedwith a laterally projecting pin 47 engaging a slot 48 formed in and directed lengthwise of the secondary tumbler 28 at the lower part thereof. l/Vhen the secondary tumbler is depressed, the upper edge of the slot 48 carries the pin 47 downward, thereby swinging the arm 45 downwardly on its pivot, so that the pin 44 engages the notch 43; When the locking bolt is actuated by the thumb turn, i. e., from the inside of the room, the depression of the secondary tumbler causes the depression of the arm 45, and the engagement of the pin 44 against the edge of the notch 43 causes the tumbler 39 of the indicator bolt to be actuated to release said bolt. Then, as the locking bolt is projected, the arm 45 is carried forward with the secondary tumbler, and it pushes the indicator bolt forwardly to the protracted position by virtue of the continued engagement of the pin 44 in the notch 43. When the indicator bolt reaches the protracted position, the tumbler snaps into locking position in front of the fence 42, as will be understood. When the locking bolt is retracted again, it pulls back with it the indicator bolt owing to the fact that the pin 44 at the forward end of the arm 45 is located back of an upward projection 49 on the rear end of the shank of the indicator bolt, as shown more lparticularly in Figs. 4, 5 and 9. When the main bolt is projected from the outside of the room by the change key, the tumbler 28 is not actuated, and therefore the pin 44 is not depressed into engagement with the notch in the tumbler of the indicator bolt. Consequently, when the locking bolt is projected, the arm 45 occupies its normal position ver tically with respect to the case, and it clears the indicator bolt mechanism and passess freely above the same, as shown in Fig. 8. Thus, under these circumstances, the indicator bolt is not projected.

Various changes may be made in the details of the construction without departing` from the scope of the invention as defined in the claims.

What I claim is:

l. In a lock, a locking bolt, two tumblers pivoted on said bolt, a thumb turn hub for protracting said bolt through the actuation of both tumblers, key mechanism for protracting said bolt through the actuation of one tumbler, and a second bolt rprotractable by said first bolt when the latter is actuated by said locking bolt, means for protracting 8. ln Va lock, a locking bolt, a primary tumbler pivoted thereon, a secondary tumbler pivoted on said bolt, thumb turn mechanism for protracting said bolt by the actuation of both of said tumblers,V key mechanism for preti-acting said bolt by the actuation of said primary tumbler independently of said secondary tumbler, and an indicator bolt controlled in its operation by said secondary tumbler; substantially described.

4. In a lock, a locking bolt, primary and secondary tumblers pivoted thereto, an auxiliary bolt adapted to be rotracted by said locking bolt, and means 'or controlling said auxiliary bolt by said secondary tumbler; substantially as described.

5. In a lock, a locking bolt, primary and secondary tumblers pivoted thereto, means for protracting the bolt from one side of the door by the actuation of both tumblers, means for protracting the bolt from the opposite side of the door by the actuation of the primary tumbler, an auxiliary bolt adapted to be protracted by said locking bolt, and means for controlling the actuation of sai d auxiliary bolt by said secondary tumbler substantially as described.

6. In a lock, a locking bolt, primary and secondary tumble-rs pivoted thereto, an auxiliary bolt, and an operator for said auxiliary bolt, mounted on said locking bolt and controlled by the secondary tumbler thereof; substantially as described.

7. In a lock, a locking'bolt, primary and secondary tumblers therefor, a second bolt, a pivoted operator for said second bolt mounted on said locking bolt, and means for controlling said operator by the swinging move-ment of the secondary tumbler; substantially as described.

8. ln a lock, a locking bolt, primary and secondary tumblers therefor, a second bolt,

a pivoted operator for said second bolt mounted on said locking bolt, and means for controlling said operator by the swinging movement of the secondary tumbler, said operator adapted to protract and retract the second bolt when the secondary tumbler is depressed; substantially as described.

9. ln a lock, a locking bolt, primary and secondary tumblers pivoted thereto, key mechanism for protracting said bolt by the actuation of said primary tumbler, thumb turn mechanism for protracting said bolt by the actuation of both tumblers, a second bolt, an operator for said second bolt pivoted on the locking bolt and controlled by said secondary tumbler, said operator adapted to retract the second bolt when Vthe locking Abolt is retracted; substantially as described.

'10; In a lock, a bolt, two tumblers therefor, means for operating said bolt through the actuation of both tumblers, means :tor operating said bolt through the actuation of one tumbler, and a second bolt protractable by the first bolt When both tumblers are actuated; substantially as described.

l1. In a lock, a bolt, a second bolt, an operator for the second bolt carried by the first bolt, tWo tumblers forV the first bolt, one of which controls theV operation of said f* operator, means 'for operating said irst bolt through the actuation of both tumblers, and means for operating said iirst bolt Copies of this patent may `be obtained for said operator into position to operate said second bolt, substantially as described.

In Witness whereof, I have hereunto set my hand on the 5th day of December, 1916.

HENRY G. VOIGHT.

five cents each, by addressing the Commissioner of atents, Washington, D. C. 

